Eyeglass-mounting.



Patented Jan. 12, 1915,

INVENTOR Lowell L'fiaacln'n/ WITNESSES ATTORNEYS rm: iv'bRR/s PETERS C0,, PHoro-uma. WASHINGTON; D c.

UNITED STATES PATENT OFFICE.

LOWELL L. HOUCHIN, 0F W OODCLIFF-ON-HUDSON, NEW JERSEY.

EYEGLASS-MOUNTIN'G.

To all whom it may concern:

Be it known that I, LOWELL L. HoUoHIN, a citizen of the United States, and a resident of Woodcliff-on-Hudson, in the county of Hudson and State of New Jersey, have invented a new and Improved Eyeglass Mounting, of which the following is a full, clear, and exact description.

.This invention relates to optics and has particular reference to eyeglass mountings of the finger piece type.

Among the objects of the invention is to improve the construction of eyeglass mountings so as to provide a bridge construction having independent means at each end thereof for supporting a lens and a finger piece guard, such means, being independent, pro viding for adjustment of either the lens or the guard without disturbing the adjustment or position of the other.

A further object of the invention is to so support the lens straps with respect to the finger piece guard mechanism as to afford a much less pupillary width than has heretofore been possible in connection with eyeglass mountings of the finger piece type.

A still further object of the invention is to improve the specific construction and opera tion of the finger piece levers with respect especially to the springs employed therewith.

The foregoing and other objects of the invention will hereinafter be more fully described and claimed and illustrated in the drawings forming a part of this specification in which like characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a plan view of a preferred embodiment of this invention, Fig. 2 is a front elevation of the same; Fig. 3 is a vertical sectional view on the line 33 of Fig. 1, showing the inner face of one of the guards; and Fig. 4 is a detailed perspective view of the other guard and the lever mechanism to which it is connected.

The several parts of the device may be made of any suitable materials, and the relative sizes and proportions, as well as the general design of the mechanism, may be varied to a considerable extent without departing from the spirit of the invention hereinafter more fully set forth and specifically claimed.

At 10 I show a bridge having a bow or arch shape and provided at its ends with Specification of Letters Patent.

Patented Jan. 12, 1915.

lugs 11. Said lugs constitute in effect continuations of the main part of the bridge and each of them is provided with a vertical pivot hole 11'. As shown especially in Fig. 1, each of these lugs is extended somewhat beyond the pivot hole so as to constitute a stop or fulcrum to be described later.

At 12 I show a pair of arms formed integral with or rigidly connected to the bridge, preferably at the lower edge thereof, and comparatively close to the ends of the bridge adjacent the lugs 11. Said arms project downwardly from the bridge and thence rearwardly approximately to the vertical plane intersecting the two pivot holes 11, and thence the arms deflected outwardly in directions opposite from each other. The lens straps 13 of any suitable or approved form are connected to the extreme outer ends of the arms 12. As to the exact shape of the arms or the location of their outer ends it will be understood that adjustment, or variation to a considerable extent will'be permitted in any case in order to fit the mounting to any particular customer or user. In other words, while I have stated herein that these arms are bent rearwardly and outwardly from their points of connection with the bridge, it is to be understood that they might extend downwardly and constructed as to include a spring 18 as an I M integral part thereof. As herein shown, the spring is formed in the nature of a bow .hav-

ing a free end orpoint 18' bearing against the aforesaid lug 11 and extending between the shank 16 and the opposite portion or leg 18 of the spring. The lever portion of the finger piece is therefore made up of two parts arranged substantially parallel to each other, said parts comprising the shank 16 and the spring leg 18" connected by means of the loop 14 which projects forwardly and is adapted to be grasped by the finger. The two parallel parts of the finger piece provide the two spaced hubs 19 having vertically alined pivot holes 19. Said hubs receive the lug 11 between them, and with the holes 11 and 19 in registry, .a pivot 20 secures them together. It will .be noted that either finger piece may be secured to either end of the bridge without disturbing the form of the arms 12 or the adjustment of the lenses. That portion of the shank 16 to which is connected the guard 17 is formed into a loop 21 which, as shown in Fig. 1 especially, is of suflicient length to provide a wide latitude of possible adjustments of the guard with respect "to a standard adjustment or form of the other parts of the lever mechanism; In other words, the guards may be variously shaped or positioned to fit any particular nose and are always supported upon the bridge in substantially definite or positive position except as they may be permitted to swing around the axes of the pivots 20; that is to say, there is little or no tendency for the guards to swing in any except the horizontal plane, namely, the plane at right angles to the axes of the pivots.

From the foregoing description of the mechanism, the operation may be briefly de-' scribed as follows: lfhe bridge and lens strap supporting arms being properly shaped or fitted to the individual, the lens will be rigidly supported thereby. The guards being likewise fitted to the individ ual, irrespective of the adjustment of the arms, they may be manipulated through the finger pieces and when forced apart against the tension of the springs the ends of the springs will bear against the lug extensions as fixed fulerums.

Having thus described my invention, I claim as new and desire to secure by Letters Patent l. The hereindescribed bridge for finger piece eyeglass mountings, said bridge comprising at each end a lenssupporting lug having a pivot hole vertically therethrough and an extension beyond the pivot hole and I also having adjacent the same end a down- Wardly and outwardly projecting lens strap arm independent of the supporting lug.

2. In an eyeglass mounting, the combination of a bridge having at its ends lug eX- tensions, means carried by the bridge to support lens straps, and a pair of finger piece guards pivotally connected to the bridge, each of said guards including as an integral structure a shank, a bow-shaped spring and a loop connecting the main portion of the spring and the shank, said shank being arranged substantially parallel to said main portion of the spring and the free end of the spring cooperating with said eX- tension of the bridge.

3. In an eyeglass mounting, the combination of a bridge having at its opposite ends a pair of pivot lugs lying in substantially the same horizontal plane as the bridge and having vertically arranged pivot holes therethrough, a pair of lens strap supporting arms connected at their inner ends to the lower edge of the bridge adjacent the lugs aforesaid and extending thence downwardly and rearwardly below said lugs and bent thence outwardly away from each other in a vertical plane substantially perpendicular to said lug plane, and a pair of finger piece levers pivoted to said lugs above and free from said arms.

i. In a finger piece eyeglass mounting, the combination of a bridge having at each end a rigid pivot lug having a vertical pivot hole and an extension beyond said hole, a pair of lens strap supporting arms secured at their inner ends to the bridge between the pivot lugs and extending downwardly and outwardly therefrom independently of the other parts of the bridge, and a pair of finger pieces pivoted to said lugs through said pivot holes, each finger piece including a lever comprising a guard sup porting shank and a spring, the main portion of the spring being substantially parallel to the shank and the other portion or "free end of the spring bearing against said lug extension, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOWELL L. HOUCHIN.

Witnesses:

HENRY van DER WIJK, WILLIAM Hrrz.

Copies" of an patent may be obtained for five cents each, by addressing" the Commissioner of Patents,

Washington; D. 0'. 

